A staff member checks the loading work of medical supplies on a China-Europe freight train at Jinan South Railway Station in Jinan, east China's Shandong Province, April 26, 2020. A China-Europe freight train loaded with 21 million protective gloves was ready on Sunday to leave Jinan for Budapest, capital of Hungary. (Photos: Xinhua/Wang Kai)

A staff member checks the medical supplies loaded on a China-Europe freight train at Jinan South Railway Station in Jinan, east China's Shandong Province, April 26, 2020. A China-Europe freight train loaded with 21 million protective gloves was ready on Sunday to leave Jinan for Budapest, capital of Hungary.

Aerial photo taken on April 26, 2020 shows the China-Europe freight train loaded with medical supplies at Jinan South Railway Station in Jinan, east China's Shandong Province, April 26, 2020. A China-Europe freight train loaded with 21 million protective gloves was ready on Sunday to leave Jinan for Budapest, capital of Hungary.

A staff member checks the medical supplies loaded on a China-Europe freight train at Jinan South Railway Station in Jinan, east China's Shandong Province, April 26, 2020. A China-Europe freight train loaded with 21 million protective gloves was ready on Sunday to leave Jinan for Budapest, capital of Hungary.

Aerial photo taken on April 26, 2020 shows the China-Europe freight train loaded with medical supplies at Jinan South Railway Station in Jinan, east China's Shandong Province, April 26, 2020. A China-Europe freight train loaded with 21 million protective gloves was ready on Sunday to leave Jinan for Budapest, capital of Hungary.

A staff member checks the loading work of medical supplies on a China-Europe freight train at Jinan South Railway Station in Jinan, east China's Shandong Province, April 26, 2020. A China-Europe freight train loaded with 21 million protective gloves was ready on Sunday to leave Jinan for Budapest, capital of Hungary. (Xinhua/Wang Kai)

A staff member checks the loading work of medical supplies on a China-Europe freight train at Jinan South Railway Station in Jinan, east China's Shandong Province, April 26, 2020. A China-Europe freight train loaded with 21 million protective gloves was ready on Sunday to leave Jinan for Budapest, capital of Hungary.

A staff member checks the loading work of medical supplies on a China-Europe freight train at Jinan South Railway Station in Jinan, east China's Shandong Province, April 26, 2020. A China-Europe freight train loaded with 21 million protective gloves was ready on Sunday to leave Jinan for Budapest, capital of Hungary.

A staff member checks the loading work of medical supplies on a China-Europe freight train at Jinan South Railway Station in Jinan, east China's Shandong Province, April 26, 2020. A China-Europe freight train loaded with 21 million protective gloves was ready on Sunday to leave Jinan for Budapest, capital of Hungary.

A staff member checks the loading work of medical supplies on a China-Europe freight train at Jinan South Railway Station in Jinan, east China's Shandong Province, April 26, 2020. A China-Europe freight train loaded with 21 million protective gloves was ready on Sunday to leave Jinan for Budapest, capital of Hungary.